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Ships within 48 hours · Estimated delivery Jul 27 - Aug 1
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Description
KZ Waterproof High Fidelity Bluetooth Upgrade Cable for KZ ZST / ZS10 / ES4 / ES3 / ZSR Earphones, KZ ZST / ZS10 / ES4 / ES3 / ZSR Earphones(Black)1. Adopt CVC 4. 0 voice call noise reduction technology, which provides advanced audio enhancement and environmental noise suppression, which solves the interference of environmental noise during the call and provides better voice call quality. 2. Qualcomm CSR8645 Bluetooth chip, with 3 seconds of fast connection, excellent reconnection speed and stronger signal anti interference ability. 3. Bluetooth 4. 2 with EDR Bluetooth enhanced rate, greatly
1. Adopt CVC 4.0 voice call noise reduction technology, which provides advanced audio enhancement and environmental noise suppression, which solves the interference of environmental noise during the call and provides better voice call quality.2. Qualcomm CSR8645 Bluetooth chip, with 3 seconds of fast connection, excellent reconnection speed and stronger signal anti-interference ability.
3. Bluetooth 4.2 with EDR Bluetooth enhanced rate, greatly improving the data transmission rate of Bluetooth technology, which is three times that of ordinary Bluetooth. Let Bluetooth transfer faster, transfer more stable, more efficient, and lower power consumption.
4. AAC-LC encoding technology, compatible with Apple mobile phone lossless transmission mode. The AAC encoding format is better than the MP3 sound quality, the file size is smaller, and the transmission is faster.
5. With industrial grade ceramic antenna, the RF frequency is more stable, the audio signal transmission gain reduces the antenna, the noise is 1/3, the noise figure of the receiving circuit such as the sound amplifier or the mixer makes the Bluetooth receiving sensitivity better.
6. Built-in 130mAh safe lithium battery, after full charge brings more than 8 hours of wireless listening, 100 hours long standby, bid farewell to frequent charging.
7. IPX5 waterproof function, suitable for running, playing, riding and other occasions.
8. Wire-controlled and battery-symmetrical design for a balanced wearing experience.
9. The ear hook is made of metal memory wire, which can be adjusted according to your own ear profile, which greatly enhances the wearing comfort.
10. Compatible with KZ ZST / ZS10 / ES4 / ES3 / ZSR and other earphones.
Product parameters:
1. Weight: 11-17g.
2. Line length: 90-100cm.
3. Bluetooth version: V4.2.
4. Running time: about 8 hours, standby time: about 100 hours, charging time: about 2 hours.
Specification:
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Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 16 reviews
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Product Reviews
★★★★★ 5
Worth it.
Size: 8.5, Color: Crushed Clay/Gum 2
Love all my Sorels. These were really cute, good color, comfortable, warm, fit well, good quality and sturdy. I would order again.
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Reviewed in the United States on March 26, 2026
★★★★★ 5
Fantastic Boots!
Size: 8.5, Color: Redwood/Gum 10
Completely satisfied with these boots. True to size, well made, comfortable from the get-go; not break in needed. Waterproof- really. The Red Suede has withstood a nasty winter season & still looks great. Good traction. I like the ankle height which looks good with long, mid length pants & leggings. I love the easy slip on/off aspect..made getting ready for dog walking easy. I 100%recommend!
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Reviewed in the United States on April 11, 2026
★★★★★ 5
Definitely worth the price
Size: 6.5, Color: Black/Black
Absolutely love these boots! I originally bought them to wear in NYC in December & they did not disappoint. They were comfortable, cute, durable and worked well in the slush/snow. The traction on the bottom is also nice! They kept me warm with wool socks. I wear them almost daily now. Perfect for everyday. easy to wear with variety of outfits. Good every day shoe.
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Reviewed in the United States on January 3, 2026
★★★★★ 5
Snagged a deal
Size: 7, Color: Redwood/Gum 10
I waited and waited to get these boots! I knew I was chancing it, but they went on sale, and I snagged them! I am a size 7, and they fit nicely with socks. a little loose, barefooted, but what psycho wears boots without socks? They are comfortable and really well-made.
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Reviewed in the United States on April 8, 2026
★★★★★ 4
Cute, comfortable waterproof boots (a little snug to put on)
Size: 7, Color: Velvet Tan/Gum 2
These are really cute Chelsea-style boots and feel very comfortable once they’re on. The waterproof material is great for wet weather and the sole feels sturdy with good traction. They look stylish enough to wear casually but still feel practical for rainy days.
The only downside is they can be a little difficult to put on at first because the opening is somewhat snug, but once they’re on they fit well and feel supportive. Overall they’re a great waterproof boot and I’ve enjoyed wearing them.
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Reviewed in the United States on March 17, 2026